I have the models like this: Item: name desc AttrGroup: name order AttrName: name

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Asked: May 27, 20262026-05-27T14:08:24+00:00 2026-05-27T14:08:24+00:00

I have the models like this: Item: name desc AttrGroup: name order AttrName: name

0

I have the models like this:

Item:
    name
    desc

AttrGroup:
    name
    order

AttrName:
    name
    group.ForeinKey(AttrGroup)
    order

AttrVal:
    value
    attr.ForeinKey(AttrName)
    item.ForeinKey(Item)

So I want to compare the attributes of n items in the list items_id=[1,3,7,…]

In views, I do something likes this:

attrs = AttrVal.object.filter(item__id__in=items_id)

and send to the templates. But I’m gonna confusing with the way how to arrange the list for interface.

The templates should like this:

<table>
    {% for g in group %}
        <tr class="group_name">{{ g.name }}</tr>
        {% for a in attrs %}
        <tr>
            <td>{{ a.name }}</td>
            {% for i in items_id %}
                <td>{{ value of item 'i' }}</td>
            { %endfor %}
        </tr>
        {% endfor %}
    {% endfor %}
</table>

I think it will have a good solution for this issue. Thanks!

Update:
Follow the pretty solution from @Lott, I found out the way how to show the data to templates. I’m using the code likes this:

{% for g in groups %}
    <tr class="title_row">
        <td class="group_name" colspan="{{ no_items }}">{{ g.0 }}</td>
    </tr>

    {% for a in g.1 %}
    <tr>
        <td>{{ a.attr.name }}</td>
        {% for i in comparing_items %}
            <td>{% if a.item.id == i %}{{ a.value }}{% endif %}</td>
        {% endfor %}
    </tr>
    {% endfor %}
{% endfor %}

And the it appears:

<table>
    <tr>
        <td>Attr Name 1</td>
        <td>Attr Value of Item 1</td>
        <td></td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>Attr Name 2</td>
        <td>Attr Value of Item 1</td>
        <td></td>
        <td></td>
        <td></td>
    </tr>
    <tr>
        <td>Attr Name 1</td>
        <td></td>
        <td></td>
        <td></td>
        <td>Attr Value of Item 4</td>
    </tr>
</table>

My goal is that list the same attribute of items [1,2,3,…] in a same row. The HTML should be like this:

<table>
    <tr>
        <td>Attr Name 1</td>
        <td>Attr Value of Item 1</td>
        <td>Attr Value of Item 2</td>
        <td>Attr Value of Item 3</td>
        <td>Attr Value of Item n</td>
    </tr>
    <tr>
        <td>Attr Name 2</td>
        <td>Attr Value of Item 1</td>
        <td>Attr Value of Item 2</td>
        <td>Attr Value of Item 3</td>
        <td>Attr Value of Item n</td>
    </tr>
    <tr>
        <td>Attr Name m</td>
        <td>Attr Value of Item 1</td>
        <td>Attr Value of Item 2</td>
        <td>Attr Value of Item 3</td>
        <td>Attr Value of Item n</td>
    </tr>
</table>

Thank you very much!